[1] Hydrologic models use relatively simple mathematical equations to conceptualize and aggregate the complex, spatially distributed, and highly interrelated water, energy, and vegetation processes in a watershed. A consequence of process aggregation is that the model parameters often do not represent directly measurable entities and must therefore be estimated using measurements of the system ...

California’s primary hydrologic system, the San Francisco Estuary and its upstream watershed, is vulnerable to the regional hydrologic consequences of projected global climate change. Previous work has shown that a projected warming would result in a reduction of snowpack storage leading to higher winter and lower spring-summer streamflows and increased spring-summer salinities in the estuary. ...

This paper outlines and demonstrates a strategy for coupling of integrated hydrologic model and Geographic Information System (GIS) to meet pre/post processing of data and visualization. Physically based fully distributed integrated hydrologic models seek to simulate hydrologic state variables and their interactions in space and time. The process requires interaction with a range of heterogeneo...

Myoepithelial cells, which surround ducts and acini of glandular organs, form a natural border separating proliferating epithelial cells from basement membrane and underlying stroma. Myoepithelial cells in situ and in vitro constitutively express high amounts of proteinase inhibitors that include tissue inhibitor of metalloproteinase 1, protease nexin-II, alpha-1 antitrypsin, and maspin. Human ...

Numerical modeling applications in hydrogeology range from pore scale to global simulations, and help quantify fluid and solute transport dynamics in variably saturated, multi-permeability, and multiphase systems. Simulations of flow are essential for addressing issues of fundamental hydrologic science, and even more so for developing and testing management or remediation strategies. Numerical ...

Hydrologic modeling in the watershed scale is a key topic field of hydrology [...]

This paper describes TerraHidro that is a distributed hydrologic modeling platform. TerraHidro is general purpose water resources system that presents a new concept to represent water flows based on graph structure, in the geographic information system (GIS) context. The drainage extractions and Amazonian basin delimitations using TerraHidro have been compared with ArcGis Hydro Tools regarding ...

A radiometric micro-volume procedure for measurement of erythrocytic hexose monophosphate shunt (HMS) activity in intact cells in vitro is described. The procedure is rapid, allowing 200 individual HMS determinations in a single experiment of 5 hr duration. The procedure is reproducible, yielding HMS activity means insignificantly different (P greater than 0.05) between replicate experiments. A...